... standards Pass QS-9000 1. 5 gallon water bottle cap(two pieces) with inner foam 2.Blue or white, PE new ... , no smell, no blowout, leakage-proof 4.Applicable to within five gallons of bottled water (mineral water,distilled water, pure water ... supply different kinds of 5 gallon caps, three-in-one, two-in-one, four-in-one, recycle or one-way,with ...